As mentioned in #76, dark theme wasn't working. I fixed that and also added some style features:

1. I extend dark and light theme styles (add font colors and border color in header)
2. I added SpectreCanvas component to the components list as a display component.
3. I replaced rocket icon in header and hero section with gradient title. In hero section, it is implemented as the separate component ConsoleTitle, that has console input animation.

Here is the gif of animation: